== sanity test 101a: check read-ahead for random reads === 16:22:44 (1790972564) nreads: 10000 file size: 96MB 154.062751s, 4.25385MB/s osc.lustre-OST0000-osc-ffff9bd3123fe000.rpc_stats= snapshot_time: 1790972733.207782889 secs.nsecs start_time: 1790972565.802823200 secs.nsecs elapsed_time: 167.404959689 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 1 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 3 0 0 | 0 0 0 16: 5030 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 100 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5035 100 100 | 100 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 22 0 1 | 1 1 2 256: 52 1 2 | 1 1 3 512: 107 2 4 | 2 2 5 1024: 207 4 8 | 4 4 9 2048: 428 8 16 | 8 8 17 4096: 853 16 33 | 16 16 33 8192: 1669 33 66 | 32 32 65 16384: 1668 33 100 | 35 35 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 1 0 0 | 0 0 0 4096: 235 4 4 | 0 0 0 8192: 2812 55 60 | 6 6 6 16384: 1812 35 96 | 61 61 67 32768: 279 5 102 | 29 29 96 65536: 14 0 102 | 5 5 101 131072: 0 0 102 | 0 0 101 262144: 0 0 102 | 0 0 101 524288: 0 0 102 | 0 0 101 1048576: 0 0 102 | 0 0 101 2097152: 0 0 102 | 0 0 101 4194304: 0 0 102 | 0 0 101 8388608: 0 0 102 | 0 0 101 16777216: 0 0 102 | 0 0 101 33554432: 0 0 102 | 0 0 101 67108864: 0 0 102 | 0 0 101 134217728: 0 0 102 | 0 0 101 268435456: 0 0 102 | 0 0 101 536870912: 0 0 102 | 0 0 101 1073741824: 0 0 102 | 0 0 101 osc.lustre-OST0001-osc-ffff9bd3123fe000.rpc_stats= snapshot_time: 1790972733.208239419 secs.nsecs start_time: 1790972565.802863320 secs.nsecs elapsed_time: 167.405376099 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff9bd3123fe000.read_ahead_stats= snapshot_time 1790972733.237669994 secs.nsecs start_time 1790972565.811495815 secs.nsecs elapsed_time 167.426174179 secs.nsecs hits 75461 samples [pages] misses 5035 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75461 samples [pages] failed_to_fast_read 5035 samples [pages] readahead_pages 5035 samples [pages] 1 15 75461